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authorYinghai Lu <yinghai@kernel.org>2009-02-08 16:18:03 -0800
committerIngo Molnar <mingo@elte.hu>2009-02-09 09:02:34 +0100
commit005bf0e6fa0e9543933fe2e36322af649df7cacb (patch)
treeb14afa63f043d8c1fcf705b2d60262d873ec8f3f /kernel/irq/numa_migrate.c
parent0f3c2a89c1451cdf6328f99977bd9decd4f708e1 (diff)
irq: optimize init_kstat_irqs/init_copy_kstat_irqs
Simplify and make init_kstat_irqs etc more type proof, suggested by Andrew. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/irq/numa_migrate.c')
-rw-r--r--kernel/irq/numa_migrate.c11
1 files changed, 3 insertions, 8 deletions
diff --git a/kernel/irq/numa_migrate.c b/kernel/irq/numa_migrate.c
index ecf765c6a77a..c500cfe422b6 100644
--- a/kernel/irq/numa_migrate.c
+++ b/kernel/irq/numa_migrate.c
@@ -17,16 +17,11 @@ static void init_copy_kstat_irqs(struct irq_desc *old_desc,
struct irq_desc *desc,
int cpu, int nr)
{
- unsigned long bytes;
-
init_kstat_irqs(desc, cpu, nr);
- if (desc->kstat_irqs != old_desc->kstat_irqs) {
- /* Compute how many bytes we need per irq and allocate them */
- bytes = nr * sizeof(unsigned int);
-
- memcpy(desc->kstat_irqs, old_desc->kstat_irqs, bytes);
- }
+ if (desc->kstat_irqs != old_desc->kstat_irqs)
+ memcpy(desc->kstat_irqs, old_desc->kstat_irqs,
+ nr * sizeof(*desc->kstat_irqs));
}
static void free_kstat_irqs(struct irq_desc *old_desc, struct irq_desc *desc)